The below landed in my inbox with a request to spread the word
eBird's long-term database migration from Oracle to Postgres will be coming to an end on November 17-19. This means that all of eBird will be down on those days - including the review tools, as well as the Macaulay Library, Birds of the World - everything. More information is here: https://ebird.org/news/database-update-november-17-19-maintenance
While we will have a notification system in eBird Mobile to warn users about this, we can't reach everyone. Please feel free to distribute this information to your local birding listservs, Whatsapp groups, or other channels, including the link to the homepage article above.